EP 3459823 A1 20190327 - CONTROL DEVICE FOR ELECTRIC POWER STEERING DEVICE
Title (en)
CONTROL DEVICE FOR ELECTRIC POWER STEERING DEVICE
Title (de)
STEUERUNGSVORRICHTUNG FÜR ELEKTRISCHE SERVOLENKVORRICHTUNG
Title (fr)
DISPOSITIF DE COMMANDE DE DISPOSITIF DE DIRECTION ASSISTÉE ÉLECTRIQUE
Publication
Application
Priority
- JP 2016165765 A 20160826
- JP 2016165948 A 20160826
- JP 2017029971 W 20170822
Abstract (en)
There is provided a control device for an electric power steering device, which determines an estimate of a steering angle instead of using an angle sensor when any abnormality is detected in the angle sensor to perform steering angle control using the determined estimate of the steering angle. When it is determined that the detected steering angle is normal based on a steering angle abnormality determination signal Flg_¸h, a steering angle calculating section 201 outputs a steering-wheel angle ¸h as an actual steering angle ¸r, while when it is determined that the detected steering angle is abnormal, the steering angle calculating section 201 determines and outputs an estimate ¸r of an actual steering angle using a past value Z¸r of the actual steering angle under normal conditions, a motor relative angle ”¸m, and a relative twist angle ”¸ of a torsion bar.
IPC 8 full level
CPC (source: EP US)
B62D 5/0484 (2013.01 - EP US); B62D 5/049 (2013.01 - EP US); B62D 6/04 (2013.01 - EP US); B62D 15/0235 (2013.01 - EP US); B62D 15/025 (2013.01 - EP US); B62D 15/0245 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3459823 A1 20190327; EP 3459823 A4 20190710; EP 3459823 B1 20200212; CN 109641619 A 20190416; JP 6481800 B2 20190313; JP WO2018038110 A1 20190207; US 10689026 B2 20200623; US 2019193776 A1 20190627; WO 2018038110 A1 20180301
DOCDB simple family (application)
EP 17843588 A 20170822; CN 201780051101 A 20170822; JP 2017029971 W 20170822; JP 2018535702 A 20170822; US 201716311330 A 20170822